Details
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Sub-task
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Status: Open
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Major
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Resolution: Unresolved
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Description
In this JIRA, we want to support recover a session from the state store to Livy server memory when the session is used.
In the current single node recover, when a server restarts, it will recover the sessions in the state store in a batch.
In the multi-active scenario, we propose a new session recovery solution. When a server leaves the cluster, its sessions will be transferred to other servers. Instead of transferring them in a batch, each Livy session gets recovered when a request for it arrives. It will save the session switch time.
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